Earlier today we told you about Sony Xperia Z being treated with a new firmware update based on the latest available Android 4.4.4 revision. The update is now official for the entire Xperia Z lineup worldwide.
Android 4.4.4 for Xperia:
Naturally, the update process is gradual, but it will hit everyone worldwide, eventually. The update is available over the air and you should be getting your notifications soon.